Remote Code Execution Vulnerability in TP-Link Archer A7 Routers
CVE-2020-10886

8.1HIGH

Key Information:

Vendor
Tp-link
Status
Archer A7
Vendor
CVE Published:
25 March 2020

Summary

This vulnerability enables remote attackers to execute arbitrary code on TP-Link Archer A7 routers running Firmware Ver: 190726 AC1750 without requiring authentication. The flaw resides in the tmpServer service, which operates on TCP port 20002. It arises from inadequate validation of a user-supplied string, allowing code execution in the context of the current process. Attackers can exploit this weakness to gain control over the device, posing significant security risks to users.

Affected Version(s)

Archer A7 Firmware Ver: 190726

References

https://www.zerodayinitiative.com/advisories/ZDI-20-339/
x_refsource_MISC

CVSS V3.1

Score:
8.1
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

F-Secure Labs - Mark Barnes, Toby Drew, Max Van Amerongen, and James Loureiro
.